A driveline lubricating composition for electric or hybrid-electric motor systems including a phosphorus antiwear additive and a multi-functional oil-soluble organomolybdenum friction modifier to provide friction modification and low copper leaching.

A lubricant composition suitable for use in an electric vehicle comprising a traction coefficient additive is provided herewith. The lubricant composition provides utility as an electric vehicle gear oil, and in particular electric vehicle transmission fluids. The lubricant composition provides improved coefficient of traction properties when in use as compared to equivalent lubricant compositions devoid of the traction coefficient additive.